Road design in Grasshopper

[Joseph_Oster]

Eight years ago.

Volume between meshes

Terrain Developable Area, Roads, Cut and Fills

Well, this was amusing… I decided to build a road, carving out terrain or building it up as needed. In ‘Top View’, draw a curve for the road on the ‘WorldXY’ plane. Make sure it starts and ends outside the bounds of the mesh surface. Adjust the ‘Count’ slider to have as few points as possible but as many as necessary to follow the road accurately. The ‘raise path’ slider will raise the projected points above the mesh surface, which can be helpful in reaching a “state of equilibrium” where …

https://discourse.mcneel.com/search?q=road%20terrain